Liquid Metal Actuated Soft Gripper Kit: Adaptable Grasping with Arduino Mega

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Build a soft robotic gripper that changes stiffness on demand: Galinstan liquid metal flows through silicone fingers, controlled by precision syringe pumps, so the gripper can gently hold an egg or firmly grasp a heavy object—all guided by an Arduino Mega 2560 and real-time pressure feedback. This kit bridges fluid mechanics, control systems, and embedded electronics into a single advanced project.

What You'll Build

You’ll assemble a fully functional soft gripper with three independently actuated fingers. Each finger contains a Galinstan-filled channel; varying the injected metal volume alters stiffness, enabling delicate to strong grasps. The system uses FSR 402 force sensors and MPX5010 pressure sensors to close the loop, while an OLED screen and MicroSD module log performance data. By the end, you’ll have a testbed for adaptive grasping research.

What You'll Learn

• Characterize liquid metal actuators for stiffness control and hysteresis
• Interface stepper motors with A4988 drivers for precise syringe pump operation
• Integrate force and pressure sensors for closed-loop grasping feedback
• Program an Arduino Mega to coordinate multi-finger adaptive grasping sequences

Kit Contents

Why Buy This Kit Instead of Sourcing Parts

Galinstan channels in silicone fingers controlled by syringe pumps change stiffness for adaptable grasping.

What's in this kit

• Arduino Mega 2560
• Stepper Motor x3
• A4988 Driver x3
• FSR 402 x3
• MPX5010 Pressure x3
• DS3231 RTC
• MicroSD Module
• 0.96in OLED
• 100nF Caps x15
• PCB Prototype Board x3
• Silicone Syringe 10mL x3
• PTFE Tube 2mm
• 12V PSU
• Soldering Iron
• Solder Wire

Choose your assembly option:

• Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
• Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.